Rolex. A 9K gold manual wind chronometer wristwatch
Model: OysterReference: 3009Date: Glasgow Import mark for 1937Movement: 18-jewel manual wind, timed to 6 positionsDial: Enamel, black baton and Arabic numeral hour markers, outer minute and 1/5th second divisions, leaf hands, red centre secondsCase: Brushed and polished tonneau form, screw down back and crown, No.37845Strap/Bracelet: Brown leatherBuckle/Clasp: Plated buckleSigned: Case, dial & movementSize: 31mm